12
ENGLISH
RANGE RATED
This boiler can be adapted to the heating requirements of the sys-
tem, in fact it is possible to set the maximum delivery for heating
operation of the boiler itself:
- switch off the power supply
- setting the heating water temperature selector at the maximum
value
- remove the shell
- turning the instrument panel towards you
- unscrew the two screws of the small cover on the electronic
board to have access to the terminals
- insert JP1 jumper
- power up the boiler.
The display shows “ADJ” for about 4 sec.: it is then possible to
change the maximum heating value by means of the heating water
temperature selector and the CO button in order to set and confirm
the desired value.
The icon will appear on the display.
Finish the procedure by removing the jumper JP1 to store the set
values.
Once the desired output (maximum heating) has been set, note the
value on the table on the back cover.
For subsequent controls and adjustments, refer to the set value.
The calibration does not entail the ignition of the boiler.
By rotating the heating setpoint selector knob, the value
expressed in hundreds (e.g. 25 = 2,500 rpm) is automatically
displayed.
Depending on plant engineering requirements or regional flue gas
emission limits it is, however, possible to modify this value, refer-
ring to the graphs.
- To exit the “combustion analysis” function, turn the control knob
- Remove the flue gas probe and refit the plug
- Close the instrument panel and refit the housing.
The “combustion analysis” function is automatically deactivated
if the board triggers an alarm. In the event of a fault during the
combustion analysis cycle, carry out the reset procedure.
table 1
MAXIMUM NUMBER OF FAN
ROTATIONS
METHANE
GAS (G20)
LIQUID
GAS (G31)
25 B.S.I.
7.100
7.000
rpm
35 B.S.I.
6.000
6.000
rpm
table 2
MINIMUM NUMBER OF FAN
ROTATIONS
METHANE
GAS (G20)
LIQUID
GAS (G31)
25 B.S.I.
2.100
2.100
rpm
35 B.S.I.
1.200
1.900
rpm
table 3
MAXIMUM CO
2
METHANE
GAS (G20)
LIQUID
GAS (G31)
25 B.S.I.
9,0
10,0
%
35 B.S.I.
9,0
10,0
%
table 4
MINIMUM CO
2
METHANE
GAS (G20)
LIQUID
GAS (G31)
25 B.S.I.
9,5
10,0
%
35 B.S.I.
9,5
10,0
%
table 5
SLOW IGNITION
METHANE
GAS (G20)
LIQUID
GAS (G31)
25 B.S.I.
4.000
4.000
rpm
35 B.S.I.
3.300
3.300
rpm
If the CO
2
values do not correspond to the values in the
Multigas table, make further adjustments.
Mynute Boiler Green 25 B.S.I. E
HTG curve (Qnheating)
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
4
6
8
10
12
14
16
18
20
22
24
26
Portata termica - numero giri ven
ti
latore
CALDAIA Mynute Green 25 CSI E
Fan rotations (rpm)
Heat output (kW)
Mynute Boiler Green 35 B.S.I. E
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Curva portata termica - giri ven
ti
latore
HTG curve (Qnheating)
Fan rotations (rpm)
Heat output (kW)
